Help: not a valid base class to inherit from ERROR

<i><b>Originally posted by : Shad Phillip (shad.phillips@verizon.com)</b></i><br />Can someone tell me why this is happening??<br /><br /><br />Parser Error <br />Description: An error occurred during the parsing <br />of a resource required to service this request. Please review the specific parse error details below and modify your source file appropriately. <br /><br />Parser Error Message: 'FirstASPNETProject.Global' is not a valid base class to inherit from<br /><br />Source Error: <br /><br /><br />Line 1: <%@ Application Codebehind="Global.cs" Inherits="FirstASPNETProject.Global" %><br /><br /> <br />